Wall form



` May 26, 1942. G LL 2,284,559

WALL'FORM iled Jan. 18, 1940 4 She Sheet l Y* @mg G. H. BRIMHALL May 26, 1942.

WALL FORM Filed Jan. 18, 1940 4 Sheets-Sheet 2 rwwwtofc May 26, 1942. G. H. BRIMHALL WALL FORM Filed Jan. 18, 1940 `4 Sheets-rSheet 3 MW w f 4 w @n M @a M n a f 2.1. Z Mr f WMM w I w W i [17. rzma/Z May 26, 1942. G. H. BRIMHAL'L. 2,284,559

50 l (jme/whom ai A J! 67601196 rim/a// Patented May 26, 1942 `UNITED STA-TES PATENT OFFICE WALL FORM George Brimhall, Hollywood, Calif. Application January 18, 1940, Serial No. 314,546

(C1. 254131)V v Z Claims.

This invention relates to building construction and particularly to the method and forms whereby the walls of a building may be cast in situ.

It is particularly aimed to provide for the construction of the walls as a Whole or in sections or partially, with it being possible to immediately remove and reuse the forms for further use in building the Wall or wallsV and particularly the extension thereof.

Another object is to provide such a construction wherein the wall may be hollow or have air cells of various sizes, a construction wherein space is provided to accommodate piping, electric wiring and the like, a construction wherein the surfaces of the wall may be lfinished smooth, may be roughened, may simulate terra cotta paneling, in which the forms maybe of metal or partly of metal and wood and are adjustable and collapsible. j j

It is further aimed to provide in connection with the plastic material used rfor the wall, for instance concrete or adobe mud, means for hastening the setting of the material, as by treating it with calcium chloride or other agent which will advance the setting of the mixture, so that the forms may be removed immediately afterA tamping. 4

Various additional objects and advantages will become apparent from a consideration of the description following taken in connection with aoshowing a form constructed in accordance with the invention, in position to receive the plastic material to form a portion of a wall; v

Figure 2 is an elevation looking toward the inner face of the core or partition section of the form;

Figure 3 is a View in elevation looking toward the reinforced face of one of the facing sections;

Figure 4 is a partial elevation looking from the right in Figure 1;

Figure 5 is a section taken on the line 5-5 of Figure 1;

Figure 6 is a section taken on the line 6-6 of Figure 5;

Figure '7 is a horizontal section taken on the line 1-1 of Figure 5;

Figure 8 is a horizontal section taken on the line 8--8 of Figure 5;

Figure 9 is a fragmentary plan view showing the joint where cores meet at a corner;

Figure 10 is a plan view showing theinclusion of a pilaster in one of the facing sections;

Figure 11 shows a means for angularly continuing Va projection form;

Figure 12 is an elevation ofV such projection form continuation;

Figure 13 is a plan viewofa form device using channels at the ends;V

Figure 14 is a side elevation of the device of Figure 13, and

Figure 15 is a longitudinal sectional view showing a tubular core which may be used to provide space within a Wall casting.

The walls according to the invention are adapted to be made from concrete or a cementitious mixture or adobe clay or equivalent plastic and is preferably treated with calcium chloride or other Aas at I3 and their longitudinal edges are preferably curled or returned as at I4 and fastened as at I5 to the transverse battens I I.` The outer face I6 of the sheet I0 determines the contour -of the adjacent inner or outer face of the Wall of the building. As shown at the left in Figure 1, such surface I6 may be plain while as shown on vthe sheet IU to the right in Figure 1 it may have suitable projections I'I to correspondingly shape the adjacent face of the wall or any other desired roughening or uneven 'elect for the adjacent surface of the Wall may be provided by varying the surface I6.

As shown in Figure l, the facing sections A are used in pairs and spaced apart to receive the previously described plastic material between them, the plastic material being suitably tamped in place. Preferably a core construction I8 is employed between the facing sections A to provide a corresponding cell, hollow space or void in the resulting wall.

In order to connect the facing sections in operative positon, anchor girts I9 are provided outwardly of such sections and at desired distances apart. ASuch anchor girts at top and bottom preferablyhave corner Abrackets 20 screwed in 4bars 33.

place as at 2l. Such brackets have slots 22 therethrough and cross ties in the form of strap members 24 are passed between the brackets and adjacent ends of the anchor girts and the adjacent slots 22, which straps or bars 24 have slots Z5 therethrough accommodating wedges 26 having openings 2l therethrough to receive wires or other elements which my tether them to adjacent structure. The inner faces of the anchor girts have metallic bumper plates 23 screwed thereto as at 29. The facing sections A rest on the lowermost strap or bar 24. A spreader or spacer 3i) is removably disposed below the uppermost strap or bar 24 being notched centrally as at 3| and at the ends as at 32, the latter notches fitting the sections A, and the former notch fitting the core I8. Resilient metallic or spring bars or strips 33 are provided in the curled or returned marginal end portions I4 of the metallic sheets IIJ, in intimate engagement therewith and with the adjacent ends of the battens Il, the same serving to rigidify the sections so that they will preserve their shape and the same also being adapted to extend from one section l5 to the alined section therewith, bridging the joint Vbetween the sections and insuring vaccurate positioning thereof.

The core I8 has two relativelymovable sec- "tions or walls 34, constructed.substantially similarly to the sections A. The sections 34 have facing sheets 35 whose longitudinal vedge portions are curled as-at 36, around upright or transverse battens 3l, gand fastened thereto by .screws vor the like 33, with resilient steel bars or plates 39 interposed between them and the ends of the battens 31 so that they function like the These sections 34 also include a central longitudinal batten as at 43 to give the desired reinforcement.

'As best shown in Figure 6, the sections S4 are urged to slide toward each other by the action of vcontractile coil springs 40 whose disposition is accommodated by openings 4| in certain are while short sections or blocks 46a. are welded thereto both centrally and at their lower ends. Blocks-46 are spaced from the upper ends of rods 44 so thatspaces are provided to receive and guide levers4'l pivoted at 48 to rods 44, which vlevers-preferably have heads 49 thereon; Obviously rods 44 may be hollow, solid and of any .cross sectional area, and elements 46,', 45" and- `4ta, may be integral with the rods 44 if desired.

Elements 4B" and outermost lower elements ttagbearagainst adjacent portions 36 while the .central outer element 46a engages a wear plate 48h. A- removable cap 5G removably fits on top of the sections 34, within the notch 3l, having `depending flanges 5| engaging the outer sur- .faces Yof thesheets 35.r Bumper plates 52 are preferably provided on the-battens 3l at their inner surfaces, secured by screws 53. lIn addition, -alinement-of the sections 34 during lateral Vs-lidingjmovement is assured since studs 54 are carried by brackets 55 fastened to battens 31 and vwhich are Vslidable'tl'irough recesses E'- in adjacent battens. The core I8 removably rests -piping or the like,

within a U-shaped steel tie member 56, which latter is removably disposed on the lower strap 24.

The parts are shown in Figure l in operative position to receive the concrete, adobe clay or other cementitious or plastic material between the sections A and the core i8, such material being adapted to be tamped in place. It is optional whether or not the core IB is used. In its absence, a solid wall will be provided instead of a hollow or cellular wall. After the wall is tamped, calcium chloride or other agent to ad- Vance the setting of the mixture being provided, to enable the form to be at once disassembled and reused to form the continuation of the wall already castor a portion of such wall already cast, by supporting the form on the previously cast wall.

In removing the structure, the wedges 26, which are usually driven in place, are first removed whereupon all of the parts may be readily disassembled leaving the core I8 in place. core is disassembled by removing the cap 3l and then swinging the levers 47 upwardly and then turning the sameto rotate the rods 44 on their longitudinal axes, thereby moving the blocks 4t out of spreading engagement with the other section 34, enabling the springs 43' to contract and move the sections 34 relatively close together, whereupon they may be readily lifted as a unit from the cast wall. The sections 34 are eX- panded simply by turning the lifted handles 41 in the vopposite direction which wedges the blocks 4S against the coacting sections 34, whereupon the .levers 4l are lowered as in Figure 5 and the can 3l applied. I

It will be noted that blocks or spacers may be-interposed removably between the sections A and core I8. Y

Where cores I3 join at right angles, as at corners of a building, as suggested in Figure 9, the

ends thereof are preferably enclosed by shields ,59, suitably screwed or removably fastened to adjacent battens 31 and preferably having a portion 6!! angularly disposed, so that the adjacent yportion or corner of the wall may be correspondingly thickened or reinforced. In Figure l0, I show a removable section El having a rnevtallic facing 52 and reinforcedY by battens or the 'Sections E4 may have a metallic covering 65 and interior cores 65 of wood. so that nails 'Vl may kbe driven through adjacent battens, the same 'having stops 'i3 thereon spaced from their heads I3, to limit their extent of penetration.

In some portions of the wall, I use the structure of Figures 13 and 14 consisting of metallic channel members 13 into the channels of which a wooden spacer 83 is disposed and fastened by means of screws at 8l and 82.

It is clear that in the formation of the wall., I may dispose in the plastic material thereof, any desired elements to later be removed to provide cells or voids or spaces for electric wiring,

For instance I may use saturated wooden blocks, so that they may be readily removed, and I may use tubes 83 as shown in Figure 15, the latter preferably tapering slightly.

By leaving the spreaders 3E! in place and pouring around the same depressions are left just the right depth in the top of the poured Wall to accommodate a strap 24 so that a steel cross tie member 56 placed in the depression brings the top of the core cover 3| parallel with the top of the sections i6 Whenthe latter are positioned on the previous pouring, to the bottom of the depression left by the spreader 3U in the previous course, and the sections A rest on the strap 24 and are clamped up tight against the previous pouring at the bottom and against the spreader 30 by the wedges 2E, at the top, in each successive course, aggregate falling into the space around the steel cross tie 56 and filling up the depression left in the previous course made by leaving spreader 3l! in place and pouring around it.

Any suitable forms may be left in the Walls to provide for doors, windows or the like. Also, any suitable reinforcing rods or means may be provided in the poured and tamped Walls.

Various changes may be resorted to provided they fall within the spirit and scope of the invention.

I claim as my invention:

1. A form of the class described having facing sections, a collapsible structure including means preventing movement of said sections toward each other, said sections being in plurality, spring strips connecting the pluralities of sections, the facing sections having sheets returned and engaged with said strips, reinforcing battens for the sheets engaged at their ends with said strips, the collapsible structure including'anchor girts disposed against the facing sections, brackets at the corners of said anchor girts, cross ties extending through the brackets, and wedges coacting with the cross ties and engaging the brackets.

2. A form of the class described comprising facing sections, said sections being in plurality, spring strips connecting the pluralities of sections, the facing sections having sheets returned and engaged with said strips, reinforcing battons for the sheets engaged at their ends with said strips, anchor girts disposed against the facing sections, brackets at the corners of said anchor girts upper and lower cross ties extending through the brackets, wedges co-acting With the cross ties and engaging the brackets, a tie member supported on the lower cross tie and a spreader below the upper cross tie having notches providing shoulders for abutment by the facing sections. GEORGE H. BRIMHALL. 

